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Finding the Fourth Proportional to 40,175.20, 60,219.60 and 15,205.60

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Solution

The fourth proportional to 40,175.20, 60,219.60 and 15,205.60 is: 22,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,175.20 : 60,219.60 = 15,205.60 : x
  2. Step 2: Convert to fraction form
    40,175.20/60,219.60 = 15,205.60/x
  3. Step 3: Cross multiply
    40,175.20x = 60,219.60 × 15,205.60
  4. Step 4: Simplify right side
    40,175.20x = 915,675,149.76
  5. Step 5: Solve for x
    x = 915,675,149.76/40,175.20
  6. Step 6: Final answer
    x = 22,792.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.